condition mean min max 4 h after light 199.7225 184.464 214.981 8 h after light 109.295 108.925 109.665 12 h after light 51.5176 42.8823 60.1529 4 h after dark 109.04625 98.2985 119.794 8 h after dark 103.2315 100.473 105.99 12 h after dark 209.8255 197.614 222.037